[Steeveedee]

Hand over the snorkel doesn't change anything because the air will then go in through the choke stove port further back. It looks like your pistons are pretty coked up. That engine is really noisy, too. In any event, if you take it out and put a load on it, that will burn all the crap off the pistons. I think that that is where most of the smoke is coming from. Those compression numbers aren't stellar, but they're good enough. Those scratches on the cylinder walls only have one solution, though, and that's bore and/or sleeve.